광물 데이터베이스와 크리스탈 테라피광물KeutschiteHenk Smeets – tomeikminerals.com·CC BY 4.0·WikimediaKeutschiteCu2AgAsS4Tetragonale heart IMA approved구성Composizione (% in peso)SCuAgAsSSulfur29.3%CuCopper29.0%AgSilver24.6%AsArsenic17.1%어원명명 유래 Frank N. Keutsch.보조 차크라third eye